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CN101116159A - The method of making the coil - Google Patents

The method of making the coil Download PDF

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Publication number
CN101116159A
CN101116159A CNA2005800285541A CN200580028554A CN101116159A CN 101116159 A CN101116159 A CN 101116159A CN A2005800285541 A CNA2005800285541 A CN A2005800285541A CN 200580028554 A CN200580028554 A CN 200580028554A CN 101116159 A CN101116159 A CN 101116159A
Authority
CN
China
Prior art keywords
coil
section
cross
cylindrical
fingers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2005800285541A
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Chinese (zh)
Inventor
海因兹·尼尔利希
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knowles Electronics Asia Pte Ltd
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN101116159A publication Critical patent/CN101116159A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil
    • H04R9/046Construction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/064Winding non-flat conductive wires, e.g. rods, cables or cords
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/077Deforming the cross section or shape of the winding material while winding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/098Mandrels; Formers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49071Electromagnet, transformer or inductor by winding or coiling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49073Electromagnet, transformer or inductor by assembling coil and core

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Windings For Motors And Generators (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
  • Linear Motors (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Particle Accelerators (AREA)

Abstract

Method of manufacturing a coil (6) with a cross section differing from a circular ring cross section, in which method a circular cylindrical coil (1) with a circular ring cross section is first wound and then reshaped into a coil (6) with the other cross section differing from the circular ring cross section, wherein at least two axially parallel fingers (4) of an expander (2) are temporarily inserted into the coil interior for reshaping the wound circular cylindrical coil (1) and are displaced in a diverging relative movement after the insertion and while doing so expand the initially circular cylindrical coil (1) into the coil (6) with the different cross section.

Description

Make the method for coil
Technical field
The present invention relates to a kind of method of making coil, described coil has the cross section different with circular cylindrical cross-section, in described method, at first the cylindrical coil with cylinder axis and circular cylindrical cross-section being twined, is the coil with another kind of cross section different with circular cylindrical cross-section with cylindrical coil shaping again (reshape) then.
The invention still further relates to a kind of moving coil (moving coil) that is used for loud speaker.
The invention still further relates to a kind of loud speaker with moving coil.
Background technology
If the cross section of the moving coil of dynamic speaker (dynamic loudspeaker) is adjusted into the geometry of barrier film (membrane), dynamic speaker can be realized extra high efficient.Especially under the situation of mini-plant such as mobile phone, preferably use miniature loudspeaker with ellipse or rectangular shape.Here the particular demands that has the manufacture method that reduces for cost is used for moving and has moving coils non-circular, some other shapes, is rectangle, avette or oval especially significantly.
Have the moving coil of rectangular cross section in fact for manufacturing, winding wire can be wrapped in square mandrel shaft (arbor) on every side, then with the adhesive that applies together.In order to reach added strength and size Control, need adjust the size of winding around.Because cylindrical wires not only can be twined sooner, and the reprocessing that does not need to add also has higher intensity inherently, compares with making cylindrical coil, and the work expenditure of making the coil of rectangular cross section doubles.
To produce the coil with rectangle or square cross section be known by the cylindrical coil of making before being carried out shaping again.According to the known a kind of method of document JP 57 101 497A: wherein cylindrical coil is placed on the cylindrical wires coil support of shaping again.Then, pressure head (ram) is pressed into the inside of this coil brace, described pressure head has the head part of wedge angle, and described head partly has the outstanding sloped footing part of part from the head, and described base portion is a prism shape.By pushing this pressure head, coil brace and the coil placed little by little are shaped as the non-cylindrical shape with square cross section again from cylindrical shape on its top.
The shortcoming of this known method especially is to use special coil support, and described support falls in that the shaping again of cylindrical coil is useless later and therefore processed.The gradually thin edge of wedge angle conical nose part has also caused the appearance of shearing force, and described shearing force acts on coil by coil brace, may cause infringement to coil.
According to the known another kind of method of document JP 2,002 135 891 A, the instrument that wherein has dihedral head part and base portion by use, come the cylindrical coil main body is carried out shaping again, according to designing described instrument with the similar mode of describing before of pressure head, yet the cross section of the described instrument that partly begins from the wedge angle conical head is little by little changed into the rectangular cross section with foursquare base from circular cross section.
This known method causes that also described component may be easy to damage the coil of shaping again at the undesirable component that axially works, maybe must the suitable large-scale coil of design.
Summary of the invention
One object of the present invention is to avoid the shortcoming pointed out in the beginning paragraph, and has proposed improved method.
In order to realize the purpose of above qualification, a kind of method of the present invention has inventive features, makes the inventive method be characterised in that the following stated mode, that is:
A kind of manufacturing has the method for the coil of the cross section different with circular cylindrical cross-section, in described method, at first the cylindrical coil with cylinder axis and circular cylindrical cross-section is twined, then described cylindrical coil is shaped as the coil with cross section different with circular cylindrical cross-section again, wherein, at least two finger pieces of expander parallel to each other and that move abreast with cylinder axis are inserted in the coil inside of twining cylindrical coil, be used for carrying out shaping again to twining cylindrical coil, and wherein after described finger piece is inserted into coil inside, horizontal the moving that described finger piece is dispersed with respect to cylinder axis is the coil with other cross sections thereby cylindrical coil is before expanded.
At the moving coil that is used for loud speaker, utilize method of the present invention to make described moving coil.
Have at loud speaker of the present invention under the situation of moving coil, described loud speaker comprises moving coil of the present invention.
Provide that feature can keep following significant advantage according to the present invention: the initial cylindrical coil can be shaped as the coil with varying cross-section again, and not in axial undesirable power of (that is, the line winding direction is tangential) effect.The only online winding direction of frictional force between the finger piece of the coil of shaping and expander occurs again, thereby much smaller than known method, wherein said frictional force occurs when shaping again takes place according to the present invention, line and/or its insulating material of described frictional force compressing coil.In addition, the advantage of the inventive method is that the inventive method needn't need any coil brace that additionally abandons.
The addition thereto that provides as claim 2 has proposed advantage: expansionary force portion in coil acts on very equably.
If measure as claimed in claim 3 additionally is provided, above-mentioned measure is especially available.
Verified, if it is measure as claimed in claim 4 is provided in addition, then highly beneficial.This provides following advantage: obtained to be particularly suitable for the coil that conduct is used for the moving coil of loud speaker, described loud speaker has the barrier film of rectangular shape in fact.
The certain benefits that the additional regulation of measure as claimed in claim 5 provides is the ideal geometry of coil.
As described in claim 6, the various variants of the inventive method are particularly suitable for making the moving coil that is used for loud speaker.
As non-limiting example, according to the embodiment that reference is described thereafter, these and other aspects of the present invention will become apparent and set forth.
Description of drawings
Set forth the present invention below with reference to two embodiment as non-limiting figure.
Fig. 1 is tiltedly to cut open the cylindrical coil that illustrates on four finger pieces that are placed on expander.
Fig. 2 shows the schematic plan of coil as shown in Figure 1.
Fig. 3 shows the coil that carries out shaping again with the similar mode of Fig. 1, according to the inventive method.
Fig. 4 shows the schematic plan of the coil of shaping more as shown in Figure 3.
Fig. 5 illustrates the coil with rectangular cross section in fact of making according to the inventive method tiltedly to cut open.
Fig. 6 shows the schematic plan of the cylindrical coil before carrying out shaping again by two finger pieces that use expander.
Fig. 7 shows by the inventive method, utilizes two finger pieces to carry out the schematic plan of the coil of shaping again, and described coil obtains from coil as shown in Figure 6.
Fig. 8 illustrates the coil of making according to the represented method step of Fig. 6 and Fig. 7 tiltedly to cut open.
Embodiment
Below set forth the manufacturing that is used for moving coil loud speaker, that have rectangular cross section as the embodiment of the invention by means of Fig. 1 to Fig. 4.
Coil as shown in Figure 5 can be advantageously used in the miniature loudspeaker, for example, is used for the loud speaker of mobile phone.
At first, utilize method known to a person of ordinary skill in the art that cylindrical coil 1 with cylinder axis and circular cylindrical cross-section is twined.Then, use adhesive gummed coil 1, be beneficial to handle further or can especially avoid the scattering of winding wire of winding around.For example, can utilize the line winding around 1 of circular adhesive varnish, described line is made up of copper or aluminium, and has 0.02 to 0.1mm diameter.Also can use the line of other types.
To be placed on the expander 2 by the coil 1 that twines and gummed obtains now.Expander 2 in this case has four claws (jaw) 3.Each claw 3 has the finger piece 4 that is configured to cylindrical bar.Four finger pieces 4 are parallel to the cylinder axis operation of coil 1, and parallel to each other.Fig. 1 and Fig. 2 show this stage according to the inventive method.By coil 1 is placed on the expander 2, four finger pieces 4 are inserted into the coil inside of the cylindrical coil 1 that has twined.
In the next step of this method, according to respect to suitably the relatively moving of the horizontal generation of the cylinder axis of shaping coil 6 (referring to Fig. 5) again, four claws 3 and four finger pieces 4 are moved away from each other or adjust.In this case, as shown in Figure 2, remove or adjust along the direction separately of four arrows 5.During this is removed, four finger pieces 4 stop to move on the inner surface of original cylindrical coil 1, and when further removing four finger pieces 4, coil 1 is expanded, four finger pieces 4 little by little are shaped as shaping coil 6 more again with coil 1, wherein shaping coil 6 has the cross section different with original circular cylindrical cross-section again, is rectangular cross section under situation of the present invention.Shaping coil 6 can be as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5 again for this.Should be noted that because shape of cross section is not a rectangle definitely, shaping coil 6 only has about rectangular cross section again, and because four angles are circular, radius of a circle is determined by the diameter of four finger pieces 4.
Four arrows 7 among Fig. 4 show and are shaped as after the rectangular cross section again, and shaping coil 6 is more additionally elongated.In this step of method, only the winding wire of shaping coil 6 is again elongated slightly, for example 3% to 5%, this introduces added strength and elasticity to shaping coil 6 again.Only need to select expansion parameters, make expansionary force just enough guarantee desirable line length.The expansion of shaping coil 6 is represented with double outline in Fig. 4 again.After its four finger pieces 4 suitably moved inwardly, shaping coil 6 moved down from expander 2 again after expansion.Figure 5 illustrates the coil of finishing of shaping again 6, wherein it should be noted, can freely select from shaping coil 6 again, to shift the position of connecting line 6a and 6b with connecting line 6a and 6b.This favourable option is unavailable in the direct winding of rectangle (promptly prismatic) coil.
Four finger pieces 4 need not to be cylindrical bar.More importantly be that four finger pieces 4 and original cylindrical coil 1 and prismatic subsequently the ground chamfering on the inner surface of shaping coil 6 again contact, thereby can not damage winding wire and insulating material thereof.As the result of the chamfering of four finger pieces 4, the coil section of coil 6 (already mentioned) is not definite rectangle, but the essential rectangle of folding corner region geometry is selected to determine by the diameter of the chamfering of finger piece.
The present invention is not confined to the coil section of rectangle in fact.On the contrary, the inventive method also can be used for manufacturing and have the prismatic coils of polygon (triangle, square, pentagon, hexagon etc.) cross section, also can be used to make non-cylindrical coil, for example has the coil of sub-elliptical or oval cross-section.
Many in may variants any one have been shown in Fig. 6 to Fig. 8.This variant relates to makes the coil of " smooth " relatively.Equally, starting point is to have the coil 1 of circular cylindrical cross-section.After coil 1 being twined and glue together, cylindrical coil 1 is put on the expander with two cylindrical finger pieces 4 the feasible coil inside that two finger pieces 4 can be inserted into coil 1.Specify this expander that is not shown specifically that two finger piece 4 is moved relative to each other along the direction of arrow 8 here, so that coil 1 is carried out shaping again, and initial cylindrical coil 1 is shaped as the coil of shaping again 9 that has according to other obvious cross sections of Fig. 7 and Fig. 8 again.Here, can select as the expansionary force of expansion parameters enough high, thereby the above-mentioned less elongation of the winding wire of shaping coil 9 has again appearred.The displacement stroke of two finger pieces 4 can also be selected expansion parameters as the winding wire that is used to elongate coil 9.In the above-mentioned variant of Fig. 6 to Fig. 8, first finger piece 4 can be maintained fixed, and only has second finger piece 4 can be with respect to first finger piece 4, tangentially adjusting along the cylinder axis of cylindrical coil 1.These two finger pieces 4 can also form with the cylindrical sleeve of hollow.

Claims (8)

1.一种制造具有与圆环形横截面不同的横截面的线圈(6,9)的方法,在所述方法中,首先对具有圆柱轴和圆环形横截面的圆柱形线圈(1)进行缠绕,然后将所述圆柱形线圈(1)再整形为具有与圆环形横截面不同的另一种横截面的线圈(6,9),其中,将彼此平行并且与圆柱轴平行运行的扩张器(2)的至少两个指状物(4)插入到已缠绕圆柱形线圈(1)的线圈内部中,用于对已缠绕圆柱形线圈(1)进行再整形,以及在将所述指状物(4)插入到线圈内部之后,所述指状物(4)相对于圆柱轴进行发散的横向移动,从而将之前的圆柱形线圈(1)扩张为具有其他横截面的线圈(6,9)。1. A method of manufacturing a coil (6, 9) with a cross-section different from a circular cross-section, in which method, at first a cylindrical coil (1) with a cylindrical axis and a circular cross-section winding and then reshaping the cylindrical coil (1) into coils (6, 9) of another cross-section than the circular cross-section, wherein the coils running parallel to each other and to the axis of the cylinder At least two fingers (4) of the dilator (2) are inserted into the coil interior of the wound cylindrical coil (1) for reshaping the wound cylindrical coil (1), and after said After the fingers (4) are inserted inside the coil, said fingers (4) undergo a divergent lateral movement relative to the axis of the cylinder, thereby expanding the previously cylindrical coil (1) into coils (6) with other cross-sections ,9). 2.如权利要求1所述的方法,其中,所述指状物(4)具有倒角,所述指状物(4)通过所述倒角卡住圆柱形线圈(1)的线圈内部。2. The method as claimed in claim 1, wherein the fingers (4) have chamfers by which the fingers (4) grip the inside of the coil of the cylindrical coil (1). 3.如权利要求2所述的方法,其中,所述指状物(4)实质上被设计成圆柱形杆。3. The method as claimed in claim 2, wherein the fingers (4) are designed substantially as cylindrical rods. 4.如权利要求1所述的方法,其中,针对制造具有实质上矩形的不同横截面的线圈(6),将四个指状物(4)用于扩张。4. The method as claimed in claim 1, wherein four fingers (4) are used for expansion for the manufacture of coils (6) having substantially rectangular different cross-sections. 5.如权利要求1所述的方法,其中,选择至少一个扩张参数,使得实现具有不同横截面的线圈(6,9)的线圈线的拉长。5. The method as claimed in claim 1, wherein at least one expansion parameter is selected such that an elongation of the coil wires of coils (6, 9) having different cross-sections is achieved. 6.如权利要求1至5中任一项所述的方法,其中,将所述方法用于制造扬声器的可动线圈。6. A method as claimed in any one of claims 1 to 5, wherein the method is used to manufacture a moving coil for a loudspeaker. 7.一种用于扬声器的可动线圈,其中,使用如权利要求1至6中任一项所述方法制造所述可动线圈。7. A moving coil for a loudspeaker, wherein the moving coil is manufactured using a method as claimed in any one of claims 1 to 6. 8.一种具有可动线圈的扬声器,其中,所述扬声器包括如权利要求7所述的可动线圈。8. A loudspeaker with a movable coil, wherein the loudspeaker comprises a movable coil as claimed in claim 7.
CNA2005800285541A 2004-08-27 2005-08-16 The method of making the coil Pending CN101116159A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04104121 2004-08-27
EP04104121.1 2004-08-27

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US (1) US7926168B2 (en)
EP (1) EP1784843B1 (en)
JP (1) JP2008511150A (en)
CN (1) CN101116159A (en)
AT (1) ATE492894T1 (en)
DE (1) DE602005025502D1 (en)
ES (1) ES2358202T3 (en)
WO (1) WO2006021915A2 (en)

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CN102315010A (en) * 2010-06-21 2012-01-11 日特机械工程株式会社 Non-circular coil manufacturing device and manufacturing method thereof
CN102983000A (en) * 2012-12-28 2013-03-20 伊戈尔电气股份有限公司 Line cake reshaping tool

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CN101542655B (en) * 2007-03-01 2012-01-25 日本萨比克株式会社 Method or device for taking-out and shape-forming of coil
US8811895B2 (en) * 2011-10-28 2014-08-19 Sequent Software Inc. System and method for presentation of multiple NFC credentials during a single NFC transaction
JP5995355B2 (en) 2012-06-26 2016-09-21 日特エンジニアリング株式会社 Non-circular coil manufacturing apparatus and non-circular coil manufacturing method
CN104283003B (en) * 2013-10-24 2017-05-24 林伟 Efficient transmitting-receiving antenna array device
DE102015201940A1 (en) * 2015-02-04 2016-08-04 Sennheiser Electronic Gmbh & Co. Kg Electrodynamic transducer
CN105188002A (en) * 2015-09-28 2015-12-23 歌尔声学股份有限公司 Voice coil line, voice coil wound with voice coil line and loudspeaker provided with voice coil
US12169806B2 (en) * 2016-09-15 2024-12-17 U.S. Bank National Association Network-based real-time enterprise travel management apparatus, methods, and systems
JP6866456B2 (en) * 2018-11-15 2021-04-28 マルホ発條工業株式会社 Non-circular coil manufacturing equipment and non-circular coil manufacturing method
CN113593893B (en) * 2021-07-30 2024-09-17 厦门义胜自动化设备有限公司 Automatic production equipment and production method for finger coil

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102315010A (en) * 2010-06-21 2012-01-11 日特机械工程株式会社 Non-circular coil manufacturing device and manufacturing method thereof
CN102315010B (en) * 2010-06-21 2013-05-01 日特机械工程株式会社 Non-circular coil manufacturing device and manufacturing method thereof
CN102983000A (en) * 2012-12-28 2013-03-20 伊戈尔电气股份有限公司 Line cake reshaping tool

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Publication number Publication date
US20080001016A1 (en) 2008-01-03
DE602005025502D1 (en) 2011-02-03
ES2358202T3 (en) 2011-05-06
WO2006021915A8 (en) 2007-05-18
WO2006021915A3 (en) 2006-07-20
JP2008511150A (en) 2008-04-10
ATE492894T1 (en) 2011-01-15
EP1784843B1 (en) 2010-12-22
WO2006021915A2 (en) 2006-03-02
EP1784843A2 (en) 2007-05-16
US7926168B2 (en) 2011-04-19

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